Results: 17

Discordancia entre pruebas de susceptibilidad genotípicas y fenotípicas para tuberculosis en Cali, Colombia: un reto en la práctica clínica

Rev. chil. infectol; 40 (6), 2023
INTRODUCCIÓN: La detección de patrones de resistencia de Mycobacterium tuberculosis se basa en pruebas de susceptibilidad fenotípicas y genotípicas. Los resultados discordantes entre ellas son un desafío clínico para el manejo de pacientes con tuberculosis resistente a fármacos. OBJETIVO: Evaluar ...

Comparison of different diagnostic modalities for isolation of Mycobacterium Tuberculosis among suspected tuberculous lymphadenitis patients

Braz. j. biol; 83 (), 2023
Abstract Tuberculosis is a communicable disease with high morbidity and mortality rates in developing countries. The study's primary objective is to compare conventional methods such as acid-fast bacillus (AFB) culture and microscopy with rapid diagnostic methods. The secondary objective is to compare hi...

Tuberculosis con resistencia a rifampicina en Chile

Resumen El éxito de los tratamientos acortados de la tuberculosis se debe a la asociación de fármacos bactericidas y esterilizantes, principalmente Rifampicina e Isoniazida. Cuando la Rifampicina no puede ser utilizada por resistencia, los tratamientos son más prolongados y el éxito en la curación ...

Diagnostic characteristics of Xpert MTB/RIF assay for the diagnosis of tuberculous meningitis and rifampicin resistance in Southern Brazil

Arq. neuropsiquiatr; 78 (11), 2020
ABSTRACT Background: The timely diagnosis of tuberculous meningitis (TBM) is challenging. Molecular diagnostic tools are necessary for TBM, particularly in low- and middle-income countries. Objectives: We aimed to calculate the diagnostics characteristics of Xpert MTB/RIF for the detection of Mycobacte...

Accuracy of a rapid molecular test for tuberculosis in sputum samples, bronchoalveolar lavage fluid, and tracheal aspirate obtained from patients with suspected pulmonary tuberculosis at a tertiary referral hospital

J. bras. pneumol; 45 (2), 2019
ABSTRACT Tuberculosis continues to be a major public health problem worldwide. The aim of the present study was to evaluate the accuracy of the Xpert MTB/RIF rapid molecular test for tuberculosis, using pulmonary samples obtained from patients treated at the Júlia Kubitschek Hospital, which is operated ...

Speeding up the diagnosis of multidrug-resistant tuberculosis in a high-burden region with the use of a commercial line probe assay

J. bras. pneumol; 45 (2), 2019
ABSTRACT Objective: To evaluate the rapid diagnosis of multidrug-resistant tuberculosis, by using a commercial line probe assay for rifampicin and isoniazid detection (LPA-plus), in the routine workflow of a tuberculosis reference laboratory. Methods: The LPA-plus was prospectively evaluated on 341 iso...

The role of the Xpert MTB/RIF assay among adolescents suspected of pulmonary tuberculosis in Rio de Janeiro, Brazil

Abstract INTRODUCTION The teste rápido molecular para tuberculose (TRM-TB) was introduced in 2014 in Brazil for tuberculosis screening. However, its role in adolescents in Brazil has not been studied. METHODS A descriptive study of adolescents with suspected tuberculosis using National Laboratory so...

Evaluation of the commercial kit SIRE nitratase for detecting resistant mycobacterium tuberculosis in Brazil

Abstract INTRODUCTION: This study aimed to evaluate a new commercial kit, Kit SIRE Nitratase-PlastLabor, for testing the drug susceptibility of clinical Mycobacterium tuberculosis isolates. METHODS: The accuracy of the Kit SIRE Nitratase was evaluated by examining the susceptibility (streptomycin, ison...

Detection of multidrug-resistant Mycobacterium tuberculosis strains isolated in Brazil using a multimarker genetic assay for katG and rpoB genes

Braz. j. infect. dis; 20 (2), 2016
Abstract Multidrug-resistant tuberculosis (MDRTB) is a serious world health problem that limits public actions to control tuberculosis, because the most used anti-tuberculosis first-line drugs fail to stop mycobacterium spread. Consequently, a quick detection through molecular diagnosis is essential to r...

Multiple antibiotic susceptibility of polyphosphate kinase mutants (ppk1 and ppk2) from Pseudomonas aeruginosa PAO1 as revealed by global phenotypic analysis

Biol. Res; 48 (), 2015
BACKGROUND: Pseudomonas aeruginosa is known to be a multidrug resistant opportunistic pathogen. Particularly, P. aeruginosa PAO1 polyphosphate kinase mutant (ppk1) is deficient in motility, quorum sensing, biofilm formation and virulence. FINDINGS: By using Phenotypic Microarrays (PM) we analyzed near 20...